Servant of the Lake hands out 49 achievements across its three-day stay at the Vanderboom estate. Twenty-four of them come from simply finishing each chapter, so they cannot be missed. The other 25 are tied to small, optional interactions you have to trigger yourself, and most of them vanish the moment a scene moves on.
Quick answer: Play through Day 1 to Day 3 once to bank the 24 story achievements, then use the Notebook’s chapter replay after the ending to revisit each task and grab the 25 optional ones. The Notebook flags which achievements you are still missing, so you never have to restart the whole game.
How the 49 achievements break down
There is one story achievement for every task across the three days, and those unlock automatically as you complete each chapter. The optional achievements sit beside or inside those same tasks. Because a lot of them require you to act before a required step, the cleanest approach is to finish the story first, then let the Notebook guide you back to the exact task that owns each missing star.
After the ending, Kate asks you to use the Notebook to revisit your memories. That replay menu lets you select any single task again and search it for the interaction you missed, instead of replaying entire days.
Day 1 optional achievements
Several Day 1 unlocks depend on doing something out of order, especially the cat and the goat. Feed the cat its milk before you ever pick up the dead mouse, or the interaction closes off.
| Achievement | Chapter | How to trigger |
|---|---|---|
| Petting the Horse | The Arrival | Click the horse’s head a few times near the eye until it dips down. |
| Feeding the Cat | Preparing Breakfast | After taking the milk from the crate, use it on the cat on the armchair, before you pick up the dead mouse. |
| Exercising with Mr. Aldous | Waking Up Aldous | During the exercise puzzle, click Aldous in random ways until he gets stuck, then click again to unstick him. This may only work once. |
| Small Repairs | Preparing the Reception | With the duster, dust the picture frame in the Servant’s Room until it falls and breaks, then piece it back together. |
| Ruining the Bouquet | Welcoming the Guests | Feed the finished bouquet to the goat, then hand it to Alexandra. Do this before milking the goat, or it leaves. |
| Serving Matcha Latte | Serving Tea | Get the tea leaves from the lockbox, feed tea to the cat, make it throw up, take the green substance from the crate, and add it to Alexandra’s tea. |
| Soothing the Baby | Opening the Reunion | Retrieve the wine (champagne) from the box and use it on baby James. |
| Checking for Intruders | The Night Watch | Check the garden door on each patrol until you see a masked figure. |
| Chase away the Crow | Searching the Attic | Click the window to spot the black bird, then scare it away. |
Day 2 optional achievements
Two of these are easy to lose. Roast the coffee beans on the stove before grinding them, and during the hunt do not stop shooting once you have enough meat.
| Achievement | Chapter | How to trigger |
|---|---|---|
| Serving Mr. Aldous his Favorite Coffee | Preparing Coffee | Before grinding, place the coffee beans on top of the stove beside the teapot to roast them, then finish the coffee and give it to Aldous. |
| Tickling Mr. William | Waking up William | With the feather, tickle William on his nipples and nose until it unlocks. |
| Deep Cleaning | Cleaning the Floors | While scrubbing the blood in the Servant’s Room, clean the stick-figure drawing in the top left before releasing the brush. |
| A Perfect Hunt | Going Hunting | Shoot every target without wasting a bullet: pheasant, pigeon, the shadow to flush the boar, the boar, William (twice), the rock to flush the rabbit, the rabbit, and the deer. |
| Close Inspections | Doing the Washing | When collecting clothing upstairs, peek through the bathroom keyhole to see the masked figure. |
| Cleaning the Windows | Helping with Bathing | With Alexandra in the bath, click each fogged window pane to wipe away the steam. |
| Garbage Disposal | Night Time Duties | Go upstairs to the balcony and throw the body parts over the railing. |
| Pest Control | Inspecting the Cellar | Use the magnet on the mousehole for a key, click the hole to draw out the mouse, then hit it with the hammer. |
For A Perfect Hunt, if you run low on bullets you can quit out of the sequence, grab more from the stump, and go back in. Missing even one shot stops the achievement from triggering.
Day 3 optional achievements
The final day holds the rarest interactions, including two hidden object placements. Checking the Furniture only works while the cat is still on the table, so do not click the cat away first.
| Achievement | Chapter | How to trigger |
|---|---|---|
| Petting the Cat | Looking for the Cat | Back in the Servant’s Room, click the cat on Kate’s lap repeatedly until it jumps off, before clicking Kate. |
| Animal testing | Assisting in Alchemy | Pour the elixir into the parrot’s water bowl so it drinks. |
| Checking the Furniture | Unforeseen Maintenance | Click the table leg next to the cat to reveal a note. Do this while the cat is still there, not after it leaves. |
| Seasoning the Soup | Preparing Dinner | Take the knife from the maid, kill the fly while making the cake, pick it up, and add it to the soup before the final ingredient. |
| Finishing Touch | Dressing Up for Dinner | On the house painting, click the third window on the second row from the bottom, then the fish on the far right. Take the fish pin from William’s painting, then pin it on his jacket before giving him his tie. |
| Safety test | Serving Dinner | At the start, click the rope in the top left of the screen a few times. |
| First Aid | The Departure | With the fork from Aldous, lift his trouser leg and use the fork twice on each wound to remove the bullets, then unequip the fork and click each wound to seal it. |
You’ve Found Him: the post-game route to Kate’s brother
The 49th achievement is a secret unlock that only opens after you beat the game. Continue past the ending and you receive a letter from Kate that starts a clue chain running back through memories from all three days. Each step points to a specific chapter you replay from the Notebook.
RRRLRLRRL. Replay Assisting in Alchemy on Day 3 and enter that sequence into the left/right box to get the next letter.6294, enter it, and take the telescope inside.The four digits come from earlier memories. The X’s on the room’s note cross off all but one number from the Helping with Bathing letter, leaving 6. The window shape matches a pane worth 2 on the house painting in Preparing Coffee. The eyeball clue on the hunting table in Going Hunting gives 9, and the symbol in Assisting in Alchemy gives 4.
Confirming a full clear
The Notebook lists every achievement you are still missing and links each one to its Day and task, so it doubles as your cleanup checklist. Once every optional interaction is done through chapter replay, the game confirms your progress with an “all additional tasks completed” message. When both the 24 story achievements and the 25 optional ones are ticked off, you have all 49.
If an achievement refuses to pop, it is almost always because an interaction happened out of order. The cat, the goat, the coffee beans, and the table leg all have to be handled before their required step advances the scene. Replaying that single task from the Notebook resets the state and gives you a clean attempt.
